3728779116 has 48 divisors (see below), whose sum is σ = 9216589536. Its totient is φ = 1169265664.

The previous prime is 3728779097. The next prime is 3728779123. The reversal of 3728779116 is 6119778273.

3728779116 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 845830 + ... + 850226.

It is an arithmetic number, because the mean of its divisors is an integer number (192012282).

Almost surely, 2^3728779116 is an apocalyptic number.

It is an amenable number.

3728779116 is an abundant number, since it is smaller than the sum of its proper divisors (5487810420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3728779116 is a wasteful number, since it uses less digits than its factorization.

3728779116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8578 (or 8576 counting only the distinct ones).

The product of its digits is 889056, while the sum is 51.

The square root of 3728779116 is about 61063.7299548595. The cubic root of 3728779116 is about 1550.6801199815.

It can be divided in two parts, 37287 and 79116, that added together give a triangular number (116403 = T₄₈₂).

The spelling of 3728779116 in words is "three billion, seven hundred twenty-eight million, seven hundred seventy-nine thousand, one hundred sixteen".